| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 11 - Apr. 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 40b - Osage Cuestas | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 66523 - Osage City, KS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 24 | 33 | 44 | 54 | 63 | 67 | 65 | 57 | 46 | 33 | 23 | 44 |
| Avg Max Temp (°F) | 39 | 46 | 57 | 67 | 76 | 85 | 90 | 89 | 81 | 70 | 54 | 43 | 67 |
| Avg Precip (In.) | .99 | 1.07 | 2.9 | 3.42 | 5.48 | 4.94 | 3.98 | 3.68 | 3.74 | 3.07 | 2.78 | 1.5 | 37.55 |